KR100969267B1 - A ceramic ware manufacture method - Google Patents

Abstract

PURPOSE: A method for manufacturing a bratticing pottery is provided to reduce a failure rate by preventing the crack of an upper connecting part of an inner body and an outer body in a process of manufacturing the bratticing pottery with a dual structure. CONSTITUTION: A method for manufacturing a bratticing pottery comprises the following steps: molding upper and lower parts of an inner body to be penetrated; cutting a middle part of a dried outer body(10); placing the inner body in the cut outer body; combining the cut outer body; punching a shape by drying the pottery which is composed of the inner body and outer body and forming a pattern on the surface of the outer body; biscuit firing the punched pottery by heating the pottery at 900-1000°C for 12-24 hours; spreading glaze; and glaze firing the pottery by heating the pottery which is coated with the glaze at 1200-1300°C for 12-24 hours.

Description

Manufacture method of hollow ceramics {A CERAMIC WARE MANUFACTURE METHOD}

The present invention relates to a hollow porcelain, more specifically, a hollow porcelain manufacturing method for minimizing the failure rate by preventing the cracking of the upper joint of the inner body and the outer body in the manufacturing process of the hollow porcelain forming a double structure. It is about.

Pottery is generally called pottery or porcelain.

The raw materials used in ceramics include kaolin, clay, and sato, which are products that are cured alone or mixed, and then hardened by applying heat. The process of making ceramics is largely divided into four stages: clay dough, molding, glazing and firing. Can be divided.

That is, one of the raw materials of kaolin, clay, and sato, which has been collected, should be selected and ground first, finely pulverized, and stirred well to receive the very fine soil settled.

In order to receive the delicate soil, the settled soil is called 'Jild soil' and its upper water is called 'Small Water'.

At this time, the device that raises Sato into the water and stirs it with the sputum of wood is called the old barrel, and the device that supports the sediment while keeping the water thin is called 'ground hole'. When the earth is ready, make a bowl.

At this time, he beats the soil that was prepared through the defensive work a day before making a bowl. The place that beats the earth is called 'cheek'.

Grind finely ground chunks of soil with gombe, pour clear water and win over your teeth. Beating the soil is the most important thing in self-production. Place the clay in the center of the vagina, press it barefoot and push it outwards.

At the end of the night, after a night, the soil is properly separated, clumped together, placed on a board and kneaded by hand.

This bundle of soil is called a 'skull'. Center the trimmed braid on a wooden wheel. Kick it and start spinning it. At the same time, press the thumb of the central part with the thumb of both hands soaked with water and stroke the outside with the remaining eight fingers to form the bowl. Dry the bowl in the shade for about a week, then trim it off.

In addition to the method of molding the ceramic body by hand in the above, there are injection molding, compression molding, and press molding.

It is a general production process of traditional ceramics to first glaze the porcelain body formed by the above-described method, and then glaze again and then bake again.

When roasting conglomerates, they are dried using heat lost in the back of the kiln.

When roasting the bowl, the temperature in the kiln is raised to 700 ℃ ~ 800 ℃, and when roasting the chaebol, the roasted porcelain is glazed and heated to around 1300 ℃ for baking.

In the case of ceramics manufactured as described above is produced in the form of embossed or engraved on the outer surface of the body.

However, in the case of the ceramics manufactured as described above, the pattern formed on the outer periphery of the body can be changed, but when forming the shape of the body, there are many problems in molding the body into a multi-structure because of a very difficult problem structurally There was this.

In particular, in recent years, attempts have been made to fabricate hollow ceramics forming a double or triple body structure, but the upper and lower joints are joined due to temperature, drying speed, shrinkage rate, humidity, etc. in the drying process after coupling the inner and outer bodies. There was a problem that the cracking phenomenon occurred, in order to minimize the drying time in the basement should not only spend 1 to 2 months, but also to complete the drying and puncture work on the outer body until it was completely dried. In the firing process, problems such as the occurrence of a failure such as cracking of the upper and lower joints of the outer body and the inner body occurred.

The present invention has been proposed to improve the above problems in the conventional ceramics manufacturing process, to provide a hollow ceramics manufacturing process that can greatly reduce the failure rate by preventing the cracking phenomenon occurring in the contact portion between the body in the manufacturing process. There is this.

The present invention for achieving the above object, molding the outer body and the porcelain molded body of the inner body, the inner body is a molding step of forming the upper and lower parts to penetrate; An outer body cutting step of cutting the interrupted portion of the dried outer body; An inner body seating step of seating the inner body inside the cut outer body; A cutting unit coupling step of coupling the cut outer body; Drying and drilling step of drying the article consisting of the inner body and the outer body and at the same time to form a pattern on the surface of the outer body to puncture the shape; First drying step of performing a heating for 12 to 24 hours at a temperature of 900 ~ 1000 ℃ after the drying; Glaze application step of applying the glaze after the first roasting; Characterized in that consisting of; chaebol roasting the glaze is applied to the article is applied for 12 to 24 hours at a temperature of 1200 ~ 1300 ℃.

In the case of conventional hollow porcelain cracking phenomenon occurred in the drying and firing step on the upper and lower contact portion between the inner body and the outer body, in the present invention, when the inner body of the inner body is mounted on the outer body formed in the form of porcelain and the outer body at the upper end By maintaining a constant separation interval, the lower part is coupled to penetrate through the lower part of the inner body, in the subsequent drying step to prevent the phenomenon of cracking between the upper part and the lower part body according to the drying rate, shrinkage rate, humidity, and the upper part is plastic Since it is combined naturally during the production of hollow ceramics exhibits an effect that can prevent the occurrence of defects.

In particular, by cutting the outer body cutting portion in the shape of a wave shows an advantage that can be easily made in situ in the cutting coupling step.

In addition, the upper part maintains a predetermined separation interval between the outer body and the inner body, and the lower part of the lower body of the inner body is coupled through the lower part does not cause the phenomenon of splitting during drying, greatly shortening the drying time, It is possible to improve the production efficiency because it is possible to work patterns and perforations on the outer body.

Hereinafter, a hollow porcelain manufacturing process according to a specific embodiment of the present invention will be described in detail with reference to FIGS. 4 to 7.

<Mold molding step> (ST 1)

The porcelain soil for producing the porcelain of the present invention is a series of processes for preparing a conventional porcelain material soil, sifting, kneading and striking the soil follows a conventional process.

Using the spinning wheel, the soil prepared as described above is molded into the outer body 10 and the inner body 20 in the form of porcelain.

At this time, the outer body 10 forms an inlet portion of which the upper part is opened, and the inner body 20 is formed in the form of the upper part as well as the lower part.

In particular, the upper inlet portion of the inner body 20 is preferably made of a height that can be spaced apart at intervals of 1 ~ 2mm without contacting the inner wall surface of the outer body (10).

<Cutting Step> (ST 2)

In this way, the outer body 10, which has been molded, is cut so that it can be separated into the upper structure and the lower structure by cutting the interrupted portion. The cutting process is performed in the form of a wave.

<Inner Body Seating Stage> (ST 3)

Then, after separating the upper structure of the cut outer body 10, by mounting the inner body 20 inside the lower structure, the lower portion of the inner body 20 to be bonded to the bottom surface of the outer body 10 It becomes possible.

<Joint cutting part> (ST 4)

When the coupling of the inner body 20 is completed in place, the upper structure of the outer body 10 which was separated again is integrally coupled.

In this case, since the cutting surface S is formed in a wave shape, a phenomenon in which the position is not shifted or shifted between the upper and lower structures does not occur, so that the cutting portion at the correct position may be easily coupled.

When the coupling is made in this way, it is preferable that the cutting coupling site can be displayed more naturally by rubbing by hand while spraying water along the coupling site.

In addition, the upper end portion of the inner body 20 in this coupling process, as shown in Figures 5 and 6 it is preferable to maintain a spaced interval (d) of 1 ~ 2mm with the inner wall surface of the outer body 10 In this case, the outer body 20 is contracted in the subsequent firing process so that cracks do not occur in the outer body 10 even if the outer body 20 is contracted with each other.

If it is spaced apart by more than 2mm, it is preferable to be spaced apart in the range of 1 ~ 2mm because the attached portion after firing may fall again.

In addition, the spacing structure can greatly shorten the subsequent drying process.

Drying and drilling stages (ST 5)

On the other hand, as described above, the completed product of the double structure is subjected to natural drying for about 1 to 2 weeks, the patterning work and the punching forming work is performed at the same time during this drying process.

That is, by forming a variety of patterns on the surface of the outer body 10 during the drying process, by performing a perforation according to the shape of the pattern, the inner body 20 can be represented through the pattern hole 11, which is a perforated part Will be.

At this time, it is preferable to perform the operation while spraying water spray for convenience of molding.

<Basic roasting stage> (ST 6)

Subsequently, the first baking is carried out by heating the material at a temperature of 900 to 1000 ° C. for 12 to 24 hours.

Glaze Coating Stage (ST 7)

After the basic roasting is completed, the glaze is applied and the glaze is completely dried in the shade.

Grilled chaebol stage (ST 8)

After drying, the product is baked in a kiln for 12 to 24 hours at a temperature of 1200 to 1300 ℃, and the chaebol roasting is completed.

1 to 3 illustrate the present invention hollow porcelain completed through such a process, the outer body 10 is formed with a pattern ball 11 is formed with a variety of patterns hollowed out with a pattern ball 11 As the body 20 is shown, a double porcelain form can be expressed.

In particular, the hollow porcelain produced as described above is in contact with the inner body 20 as shown in the cross-sectional view of Figure 3, while the inner space of 1 ~ 2mm disappears due to the shrinkage of the outer body 10 during the plastic heating process. It can be seen that it is possible to prevent the occurrence of cracks in the junction of the outer body 10 and the inner body 20 and to maintain the appearance of the product beautifully.

1 is a perspective view of the finished state of the present invention hollow ceramics.

Figure 2 is an external side view of the present invention hollow ceramics.

Figure 3 is a cross-sectional structural view of the present invention hollow ceramics.

Figure 4 is a manufacturing process of the present invention hollow ceramics.

Figure 5 is a cross-sectional structural view of the state before firing in the manufacturing process of the hollow ceramics of the present invention.

FIG. 6 is an enlarged view of a portion A of FIG. 5; FIG.

7 is a flow chart of the manufacturing process of the present invention hollow ceramics.

<Explanation of symbols for the main parts of the drawings>

10: outer body 11: pattern ball

20: internal body

Claims (6)

Molding the porcelain molding of the outer body 10 and the inner body 20, the molding is made to the height of the inner body 1 ~ 2mm lower than the height of the inner peripheral surface of the outer body, the inner body 20 is to penetrate the upper and lower parts Molding step of molding; (ST 1) Cutting the interruption of the dried outer body 10, the outer body cutting step of forming a cutting surface (S) in the shape of a wave so that the coupling portion can be matched without twisting in the subsequent cutting unit coupling step (ST 4) ; (ST 2) An inner body seating step of seating the inner body 20 in the cut outer body 10; (ST 3) Joining the cut outer body 10, the cutting portion coupling step of maintaining the upper inlet portion of the inner body that is seated inside the 1 ~ 2mm spacing (d) with the inner peripheral surface of the outer body; (ST 4) Drying and drilling step of drying the article consisting of the inner body 20 and the outer body 10 and at the same time forming a pattern on the surface of the outer body 10 to puncture the shape; (ST 5) After the drying, the first step of performing a heating for 12 to 24 hours at a temperature of 900 ~ 1000 ℃; (ST 6) Glaze application step of applying the glaze after the completion of the roast; (ST 7) The chaebol roasting step of heating the glaze-coated article for 12 to 24 hours at a temperature of 1200 ~ 1300 ℃; (ST 8) Openwork porcelain manufacturing method characterized by consisting of. delete The method according to claim 1, In the drying and drilling step (ST 5), the drying operation is performed for 1 to 2 weeks in a natural drying method, the pattern porcelain manufacturing method characterized in that the pattern and drilling work is performed while spraying water on the surface of the outer body . delete delete delete

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